Hi
Read Glencoyne' upgrade, many other write ups available online too.
Disco200 engine turbo will require clocking to avoid hitting chassis,
Steve Parker makes exhaust sections or complete units if you can't weld up yourself.
Steve Parker bolt kit to secures flywheel housing to block stiffener (4 countersunk bolts).
Tap out 3 blank holes in bottom & fit studs to line up with Series Gearbox if thats what you've got.
Apparently series3 petrol engine mountings are best.
200TDI should sit straight on.
Battery tray requires modification to allow room for timing case.
Fit electric/thermo fan as less room inbetween engine & radiator.
Mingdiesel
I'm doing this myself on a S3 Lightweight to replace 2.25 Petrol.
Mingdiesel.